Odpowiedzi

2009-10-29T19:31:43+01:00
T=(2m:0,3m/s + 2m:0,6m/s) * 0,5m:2mm=
(2m* 10/3s/m+2m*10/6s/m)*500mm:2mm=
(20/3s+20/6s)*250=
40/6s+20/6s)*250=
60/6s*250=
10s*250=2500s


2500s=2500s:60=41,7min